EmpiricalStudies SumeiTa ng,E .A... Datafromthefollowingsources: -GrossdomesticproductGDPofprovincesandcitiesintheperiod2007- 2014istakenaccordingtotheactualvalue,measuredinVNDbillionat
Trang 1PhamDinhLong&LeNguyenQuynhPhuon g|1
Publicinvestment,privateinvestm ent,foreign directinvestmentand economicgrowthinVietnam:
2014.A p p l y i n g thePVARmodelinconsideringtherelationsbetweent hesevariables,weprovidemoree m p i r i c a l evidenceontheimpactso fdifferenttypes ofinvestmentsonthelocaleconomicg r o w t h of63prov incesinVietnam.
i n g d o m e s t i c investment( i n c l u d i n g t h e p u b l i c i n v e s t m e n t ,
p r i v a t e i n v e s t m e n t ) , f o r e i g n d i r e c t i nv es t m e nt , andmostofallinthecountries.Domesticinvestment(DI)hasalwaysbeenseen
a s a m a j o r c o n t r i b u t o r tot h e n a t i o n ' s e c o n o m i c g r o w t hespeciallyi n t e r m o f
Trang 2creatingjobsf o r t h e e c o n o m y F o r e i g n d i r e c t i n v e s t m e n t( F D I ) p l a y s a k e y r o l e i n boosti ng theeconomy,contributingsignificantlytotheeconomicgrowthofcountriesingeneral.
Developingcountriesintheworld,aswellasVietnam,arefacingissuesofattraction,m a n a g e m e n t , a n d u s e o fi n v e s t m e n t source
st h a t haven o t b e e n effectivei n r e c e n t yea rs V i e t n a m h a s a
c c e s s t o s t a t e b u d g e t f u n d s , e n c o u r a g e d i n sectorprivateinvestmentaswellasforeigndirectinvestmentfrommultinationalcompanies,whichisexpectedto m a k e a po s i ti ve c h a n ge in pr om o ti n
g e c onom ic gr ow th H o w e v e r , in th e localcontext,itisnottheexploitationoftheseresourcesthatisthesame,dependingonthecharacteristicsofeachregion,thepoliciesandwaysofusingthesourcesofi n
v e s t m e n t o f m a n a g e r s a r e d i ff e r e n t A l l o f t h e s e f a c t o r s c o
n t r i b u t e t o c h a n g i n g t h e impactofinvestmentonlocaleconomicgrowth
Therefore,thepaperwillanalyzethecurrentstatusandquantificationofthecausalr e l a t i o n s h i p betweenpublicinvestment,privateinvestment,foreigndirectinvestmentandeconomicgrowthintheprovinces/cities.Vietnamintheperiod2007-
2014usingtheP V A R m o d e l F r o m t h e r e s u l t s o f t h e a n a l y s
i s , t h e s t u d y p r o v i d e s p o l i c y recommendationsforeachoftheseinvestmentsaswellasacombinationofthesetypesof investmentsinawaythatcansustainandpromotelocaleconomicgrowthinVietnam
Theoutlineofthispaperisthefollowing.Section2 summarizesthesurveyofthe literature.Section3containsanoverviewoftheeconometricmethodologyandabriefd i sc u s s io n ofthedata.Section4discussestheempiricalresults.Finally,Section5givessomeconclusionsandpolicyimplications
Trang 32 LiteratureReview
2.1 TheoreticalStudies
Inthehistoryofdevelopingcountriesandingeneraltheories,anycountrymustusethem o s t i n t e r n a l r e s o u r c e s t o d e v e l o p t h e e c
o n o m y B y u s i n g t h e e ff e c t i v e d o m e s t i c capital
toenhanceitsroleandachievethecountry'simportantgoals.Domesticcapitalisadecisivesource,andforeigncapitalisanimportantadditionalsourceofinitialdevelopment.T h i s i s r e fl e c t e d i n t h e r o l e
o f a d d i t i o n a l f u n d s f o r i n v e s t m e n t a s t h e internalaccumulationoftheeconomyislow.Theroleofdomesticcapitalinanycountryisundeniable,butwithglobalizationinthenewera,foreigncapitalplaysanimportantroleinpromotingeconomicdevelopment Ofanycountry,especiallyunderdeveloped, developingc o u n t r i e s , o
f w h i c h F D I i s t h e d o m i n a n t ( a p a r t f r o m o ffi c i a l d e v e l o p m e n
t assistance(ODA))
Int h e e a r l y 1 9 8 0 s , researcheso n t h e d e t e r m i n a n t s o f e c o n
o m i c g r o w t h a t t r a c t e d n e w interestamongeconomists.Inparticular,therelationshipbetweenFDIandeconomicg r o w t h i s a
t o p i c s t u d i e d i n d e v e l o p e d e c o n o m i e s , b o t h t h e o r e t i
c a l l y andempirically.T h e t h e o r y o f e n d o g e n o u s g r o w t h( R o m e r ( 1 9 8 6 ) , L u c a s ( 1 9 8 8 ) , B a r r o (1991),Mankiw,RomerandWeil(1992),BarroandSala-i-
Martin(2004)confirmsthatFDIpromoteslong-termeconomicgrowthbytechnologicaldiffusion.Thistheoryformsth
e b a s i s o f l a t e r s t u d i e s t o i d e n t i f y t h e m a j o r f a c t o r s e x p
l a i n i n g t h e d i ff e r e n c e s i n economicgrowthamongnations.Ontheotherhand,theEclectictheoryofFDI,developedbyDunning(1988),providesanotherwayofanalyzingtherelationshipbetweenFDIandeconomicgrowth.Basedont h e a n a l y s i s o f c o m p e t i t i v e a d v
a n t a g e , t h i s t h e o r y s h o w s t h a t t h e a t t r a c t i o n o f F D I dependsverymuchonthefactorsandcharacteristicsofthehostcountry.Althoughintheshorttermtherelationshipbetweeninvestmentandeconomicgrowthtendstobelo w,butinthelongrun, investmentratesarefoundto becloselylinkedtoeconomic growth.Onecountry,ifdomesticsavingsarenotenoughfordomesticfinancial investment,willdependonforeigncapital
Ins h o r t , d o m e s t i c c a p i t a l h a s a l w a y s b e e n a m a j o r s o
u r c e o f e c o n o m i c g r o w t h However,itcannotbedeniedthattheroleofforeigncapital,especiallyFDI,isalsoap o t e n t i a l s ourc eo
f ec onom ic growth for any c ountry, its role ine c onom ic growt
h It
Trang 4shouldb e exploredindeptht h r o u g h e m p i r i c a l s t u d i e s I n a d d i
t i o n , t h e r e l a t i o n s h i p be twee nt h e s e t w o s o u r c e s o f c a p
i t a l i s a l s o a ffi r m e d a s c o m p l e m e n t a r y a n d complementaryrelationships,ineachperiodin whichtheyinteractatdifferentlevels,Thiseffectisalsonotthesameforeachcountrywithitsowneconomiccharacteristics
2.2 EmpiricalStudies
SumeiTa ng,E A S e l va na t ha n and S Se lva na tha n ( 20 08 ) u
s e d th e VAR a nd E CM regressionm o de l f o r qu a r te rl y t i m e s e r i e
s da t a f r o m t h e fi rs t q u a r t e r of 1 9 8 8 t o t he thirdquarterof2003toexamineshort-andlong-
termrelationshipsbetweenFDIandD I , andeconomicgrowthinChina.Inthecourseoftheexperiment,hefocusedontheGrangerc a
u s a l r e l a t i o n s h i p b e t w e e n t h e v a r i a b l e s a n d t h e f u n c
t i o n o f t h e i m p u l s e responsefunction.TheresultsshowthatinsteadofoverridingDI,FDIhasanadditionalre la tionship f o r D I F D I n o t
o n l y h e l p s i n o v e r c o m i n g t h e s h o r t a g e o f c a p i t a l , i t a l s o stimulatese c o n o m i c g r o w t h t h r o u g h t h e a d d i t i o n o f D I c a p i t
a l i n C h i n a C h i n a ' s D I capitala n d e c o n o m i c g r o w t h a r e p o
s i t i v e l y c o r r e l a t e d ; L a r g e e c o n o m i c g r o w t h encourageslargedomesticinvestmentandviceversa.China'sDIandeconomicgrowthhavenothadasignificantimpactonFDIinflowsoverthelongterm.ThecausalrelationshipbetweeneconomicgrowthandDIistwo-way,butthereisonlyonecausald i m e n s i o n fromFDItoDIandFDItoeconomicgrowth.China'sDIhasagreaterimpactone c o n o m i c g r o w
t h t h a n t h e i m p a c t o f F D I o n s t i m u l a t i n g e c o n o m i c g r o
w t h a n d promotingdomesticsavingsshouldbeprioritizedoverFDIattractioninthedesignandim plem enta tion ofthewar.InvestmentstrategyandinvestmentpoliciesinChina
SamuelAdams(2009)usedpaneldatafor42sub-SaharanAfricancountriesbetween1990a n d 2 0 0 3 t o a n a l y z e t h
e i m p a c t o f F D I , D I o n e c o n o m i c g r o w t h B y t h e O L S regressionmethod,thestudyshowsthatFDIinthelatterperiodhasapositiveimpactoneconomicgrowth,butthecurrentFDIdoesnothaveapositiveimpactoneconomicgrowth.Thisresultisexplainedbythelowlevelofdevelopmentinsub-
SaharanAfrica,l e s s d e v e l o p e d e c o n o m i e s t h a t f a v o r F D I , b
u t t h r o u g h O L S a n d F E M r e g r e s s i o n , t h e studyhasalsobeenshownthatDIhasapositiveandsignificantcorrelationfore c o n o m i c growth.Inaddition,thestudyresultsalsoshowatrendthatFDIisinverselyproportionaltoDI
Trang 5HoiHoiLeanandBeeWahTan(2011)withannualtimeseriesfrom1970to2009studytherelationshipbetweenFDI,DIandeconomicgrowthinMalaysia.Youusethe
Trang 6VARandVECMmodelstostudytherelationshipofeconomicvariablesintheshortandlongrun.First, the yusedtheVARmodel,verifiedtheco-
alignmentrelationship,and thencontinuedusingtheVECMmodeltostudytherelationshipofeconomicvariablesinthel o n g r u n T h e e m p i r
i c a l r e s u l t s o f t h i s s t u d y indicatethatF D I , DIa n d
long-terme c o n o m i c
growthhavealong-termrelationship.FDIhasapositiveimpactoneconomicgro wt h, wh
e reas DIha sanega tive im pa c t one conomicgrowth.Inthe lo
ng te rm In particular,theresultsofthestudyalsoshowacausalrelationshipbetweenDIandFDI,b e t w e e n economicgrowthandFDIintheshortterm.Inaddition,theincreaseofFDI willhaveapositiveimpactonDI,resultinginadditionaleffectsfrom FDIonDI.Higheconomicgrowthwillattrac tFDIfl ows in Malaysia.DIis alsoani
m portantfac torin at tra cti ng foreigninvestmentintheshortterm.ExpandingFDIinflowsmaybelinkedtoanastonishingincreaseinDI,andbothFDIandD I businessescanworktogethertof u r t h e r thegrowthofMalaysia
RehmatU l l a h A w a n , K h a l i d J a v e d a n d F a l a k S h e r ( 2 0 1
2 ) s t u d y t h e r e l a t i o n s h i p betweenF D I , e c o n o m i c g r o w t h ,
e x p o r t s , i m p o r t s , D I i n t u r n i n S o u t h A s i a i n c l u d i n g Bangladesh,India,PakistanandSriLanka,Usingtheannualtimeseriesdatafrom1973to2010.ThepaperusestheVARmodelandfocusesprimarilyoncausalrelationshipsbetweenF D I v a r i a b l e s , e c o n o m
i c g r o w t h , e x p o r t s , i m p o r t s D I , r e p r e s e n t e d b y fi x e d capitalformationandadditionalcommercialopenness(withtradeopenings=(exports
+imports)/
GDP).TheresultsofthestudyshowthatFDIhasanimpactoneconomicgrowthbutthiseffectisweakerthan theimpactofexportsoneconomicgrowth.Thepaperalsoshowsthatotherresultssuchaseconomicgrowthaffectimportsindifferentperiodsbutthereisnoreverserelationshipofimportstoeconomicgrowth.Similarly,economicgrowthaffects tradeopennessbutthereisnoreversaloftradeopennesstoeconomicgrowth.Thereisa ls o a two-
wayrelationshipbetweenFDIandtra de o p e n n e s s
TranNguyenNgocAnhThu(2014)focusedontheimpactofpublicinvestmentoneconomicgrowthinVietnamusingtheARDL techniquefor1988-
2012.Theresultsoft h e s t u d y s h o w t h a t t h e r e i s n o e v i d e n c e o
f t h i s e ff e c t i n t h e s h o r t t e r m b u t p u b l i c investmenthastheeffectofpromoting long-
termgrowth, although thisisthelowestco mp ar ed toprivateandcapitalinvestment.PrivatedirectforeignInaddition,thestudybyN g u
Trang 7y e n H o n g H a ( 2 0 1 5 ) o n t h e i m p a c t o f F D I o n e c o n o m i c g r o
w t h i n T r a V i n h provincefor datafor the period 1999 to2013 us i
ng VAR tec hnique s a ndre la tions hip
Trang 8ICUEH2017
testingC a u s e a n d e ff e c t , t h e studyr e s u l t s showt h a t t h e a t t r a
c t i o n o ff o r e i g n directinvestmenthasanimpactoneconomicgrowthinTraVinhprovinceandviceversa
v a r i a b l e s s u c h as labor force, privateinvestment, FDI haveapositive
impactoneconomicgrowth,meanwhile,theopennessoftheeconomy,inflationistheopposite.Basedonthefindingsofthestudy,theauthoralsoprovidedsomelessonsforVietnamtoimprovetheimpactofpublicexpenditureoneconomicgrowth
t r e s u l t s f o r e a c h c o u n t r y , group,o r region.T h e results s h o w t
h a t t h e r e l a t i o n s h i p b e t w e e n i n v e s t m e n t c a p i t a l a n d e c o
n o m i c g r o w t h remainsu n c l e a r O n t h e b a s i s o f i n h e r i t i n g
p r e v i o u s r e s e a r c h , a s w e l l a s e x t e n s i v e research,theimplementationofaresearchprojectonthesamesubjectinaVietnameselocaleh a s a n i m p o r t a n t r o l e t o p l a y T o h e l p p o l i c y m a k
e r s h a v e a p r a g m a t i c a n d generalviewoftheirlocalsituationinordertomakerecommendationsandimplementeffectivelythecompetitiveness,sustainableeconomicdevelopment ofthelocality,closeco nt r ib ut io n andoveralldevelopmentofthewholeeconomyinthecountry
3 MethodandData
Thism e thod us e d in th is re s e a rc hi s Pa ne l Ve c t or Autoregression(PVAR).Bythiswa y , thePanelVAR(PVAR)techniquecombinesthetraditionalVARapproachtreatinga l l v a r i a b l e s o f t h e s y s t e m a
s e n d o g e n o u s w i t h e s t i m a t i o n t e c h n i q u e s f o r p a n e l d a t a , w
Trang 9PhamDinhLong&LeNguyenQuynhPhuon g|9
hichallowsforunobservedheterogeneitywhiletheuseofVARmodelsintimeseries
Trang 10analysis isa commonstandard.PVAR isoneof
p r e s e n t s t h e F o r e c a s t ErrorVarianceDecompositions(FEVDs),whichshowsthepercentofthevariationinonevariablethatisexplainedbytheshocktoanothervariable,accumulatedo v e r time.Thevariancedecompositionsshowthemagnitudeofthetotaleffect
Trang 11RealGDPrepresente dfore c o n o m i c gro wth
GI
Investmentfromgovern mentse c tor
+ PublicInvestment
PublicInvestmentratein GDP
PI Investmentfromprivatesector + PrivateInvestment
Investmentrateofn on-
s t a t e sectorinGD P
FDI ForeignDirectInvestment + Proportionofinvestment
capitalfromforeigndir ecti n v e s t m e n t se
ctortoGDP
Controlvariables
LABOR
Employeesaged15yea rsanda b o v e intheWor kforce
+
Annualratesoflaborfo rceg r o w t h
LaborForce TO
Totalvalueofexportan
di m p o r t ofgoodsint hearea
+
Volumeofexports andi m p o r t s ofg oodsandse r v i c e s
Exportt u r n o v e r toGD P
Trang 12TotalImport-PhamDinhLong&LeNguyenQuynhPhuon g|453
Thisp a p e r u s e s s e c o n d a r y d a t a f r o m 6 3 p r o v i n c e s a n d c
i t i e s i n V i e t n a m f o r t h e periodof08yearsfrom2007to2014,sotherewillbeatotalof504observations
Datafromthefollowingsources:
-Grossdomesticproduct(GDP)ofprovincesandcitiesintheperiod2007-
2014istakenaccordingtotheactualvalue,measuredinVNDbillionatthefixedpricein2010takenfromtheVietnameconomic-
thesocialstatisticalyearbookof63provincesandcities,providedbytheGeneralStatisticsOfficeofVietnam
Trang 13- Theexportandimportvalueofgoodsinthearea(unit:theUS$thousand)takenf r o m thestatisticalyearbookoftheGeneralStatisticsOffice.Then,tradeopennessdataiscalculatedfromthissource.
Ther e s e a r c h d a t a o f t h e t o p i c i s t a k e n f r o m t h e r e l i a b l e s
o u r c e s a v a i l a b l e i n t h e provincialstatisticalyearbookandtheGeneralStatisticsOfficeo f Vietnam.Butforp r o v i n c i a l G D P fi g u r e s ,
s o m e e s t i m a t e s t e n d t o behigherthanGDPfiguresf o r thewholecountry.ThisisarestrictionontheGDPfiguresofprovincesandcitiesinthist o p i c H o w e v e r , t h i s t o p i c doesn o t t a k e i n t o a c c o u n t t
h e overallGDPo f t h e wholecountry butonlytoassesstheimpactofpublicinvestmentontheGDPofprovincesandcities.Therefore,itistemporarilyacceptableaccordingtotheGDPdataavailablefrom theprovincialstatisticalyearbookforanalysis
Whereas,thet i m e s e r i e s d a t a b a s e s a r e o f t e n n o t o n l y v e
r y l a r g e v a l u e s b u t a l s o differentones,mostvariablesusedinthismodelaregotLogarithmfromtheirvalues e xce pt tradeopenness.Moreover,thegettinglogarithmalsohelpstoeliminatethelineart r
e n d fordata
4 Result
4.1 UnitrootTest
First,liketheVARmodel,whenestimatingthePVARmodel,itisnecessarytoensurestationarityofalltimeseriesvariables.AcommonlyusedtestvalidinlargesamplesistheaugmentedDickey–
s t i m a t i o n , w e b a s e o n J s t a t i s t i c a n d